744540475725 has 120 divisors (see below), whose sum is σ = 1387077908832. Its totient is φ = 396441864000.

The previous prime is 744540475687. The next prime is 744540475733. The reversal of 744540475725 is 527574045447.

744540475725 is a `hidden beast` number, since 7 + 4 + 4 + 540 + 4 + 75 + 7 + 25 = 666.

It is not a de Polignac number, because 744540475725 - 2²⁵ = 744506921293 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 572282575 + ... + 572283875.

Almost surely, 2^744540475725 is an apocalyptic number.

744540475725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

744540475725 is a deficient number, since it is larger than the sum of its proper divisors (642537433107).

744540475725 is an equidigital number, since it uses as much as digits as its factorization.

744540475725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501 (or 2472 counting only the distinct ones).

The product of its (nonzero) digits is 21952000, while the sum is 54.

The spelling of 744540475725 in words is "seven hundred forty-four billion, five hundred forty million, four hundred seventy-five thousand, seven hundred twenty-five".